9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

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Answer 1

Hidden content!
#include<stdio.h>

int main()
{
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}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
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*   *  * ** *  *  *   * *** *  *  0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
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return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
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***   (){
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  *  * 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
 * ** *  *     ** 
int ** *  
{
**  *****   * * a,b,swap;
 **  ** *   **     * *     
* *** **** **  *   ** *  
swap=a;
a=b;
b=swap;
* ***** ** * ****  * * a);
** *** * *** *** 
* * *  *   *  *      0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
* * ***  * *  **  **
main()
{
   * **  *  **  ** * ****
  *    ** *** *** *  * * 
 * ***   **    *  **  ** 
swap=a;
a=b;
b=swap;
      ***** * *   ** a);
***  *** *  *  **   *  **
**** **  *    * 0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
***   *** **   * 
 int main(){
int a,b;

**   * * * **   ***  *** **  *   * *   *  ******  **   ********  ** * ****   *

   ***** *  *** *** * *   **     ***  * *  * *   *   

return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
  * ** * * * * ***
  * ***  main(){
int a,b;

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*   *  * ***   ***** *** *  * *   * * *   **     

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
* ** ***  ** ******      * **
  *  ** *   *  *  ****   x,y,temp;
  * ** ****** ** * * * 
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  **   *  *  ***   *  ** ****  = x;
*** *** *** ** ** *  ***    *** ** = y;
   *   *  *    ***  ** * **  ***  = temp;
 **** **  * * ***   ** ** 
 **** * *   **  **   * ******  ****  * ****   ** x,y);
   *** *** *    *   * ** **    
* *****    **  *  * ***  ***  ***  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output